20 Pack Plastic Protractor, 180 Degrees Protractor for Angle Measurement Student Math, 4 Inches, Clear

plastic protractor for angle measurement 180 degrees protractor student math, 4 inches, clear, 20 pack Practical 4 inch protractor The bottom side length is 10 cm, 4 inch size make it easy to put on your books, notebooks and pencil case. The 4 inch protractors are suitable for painting, measure, homework, technical drawing. Clear and accurate protractor The black numbers are clear and easy to identify, then you can read and get the angle quickly with great accuracy. With the clear surface, you also can see through the protractor which will make your measure more effective. Unique design There are 2 circle numbers, you can read the angle anticlockwise and clockwise. Good helper for measure The math protractors are suitable for children, teachers, students, office workers, etc. Specification: Protractor size: 10 x 5.5 x 0.13 cm Total: 20 pieces Attention: the minimum accuracy is 1 degree. Package includes: 20 x Protractors (4 Size)

20 Pack protractors: the material is plastic; The bottom side length is 10 cm, 4 inch size make it easy to put on your books, notebooks and pencil case

Measure protractor with accurate number: the black numbers are clear and easy to identify, then you can read quickly with great accuracy

Half round shape: the plastic protractors are the common shape protractor, it’s universal, you can applied to settle the math problems frequently

Thick and durable protractors: this clear plastic protractor is thick enough, thus they are not easy to snap; Total: 20 pieces

Measure math tool: the geometry protractors are suitable for painting, measure, homework, technical drawing; Abundant bulk, you can send them to your friends and classmates